JP2009075051A - Composite component integrated with metal band plate, and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that a component is largely damaged when fixing the component by making a projection formed by caulking a metal band plate bite in the component. <P>SOLUTION: Two slits 7 and 7a are formed inward from one side of an insertion part into a mounting hole 3 of the component 1 of a metal band plate 2, a part 8 between them is exposed in a window 4 that opens at the side surface of the component 1 and communicates with the mounting hole 3, a part 8 between the slits of the metal band plate 2 is folded to a deeper side than the window 4 to form a stopper 10, and a storage recessed part 5 of the stopper 10 is formed in a part opposite to the window 4 with respect to the mounting hole 3 in the component 1. Then, one end of the metal band plate 2 is inserted into the mounting hole 3, a tool T is inserted into the window 4, the part 8 between the slits is folded and used as a stopper 10 to make the part abut on the inner wall surface of the storage recessed part 5 in manufacturing, so that the damage of the component 1 caused by the stopper 10 formed by processing the metal band plate 2 is completely eliminated. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a composite part in which a part is integrated with a metal strip, such as an oil level gauge, and a method for manufacturing the same.

  Conventionally, a composite part in which parts are integrated at the end of a metal strip, specifically an oil level gauge, has been provided with a resin handle and a metal gauge body. An attachment hole into which one end is press-fitted and a window portion that opens in the peripheral wall and communicates with the attachment hole are provided, and the gauge body has a protrusion formed by caulking a portion exposed from the window portion, It can be seen that the protrusion bites into the resin of the handle part and the gauge body is fixed and secured. This oil level gauge presses one end of the gauge body into the attachment hole of the handle part and the gauge part. The gauge body is caulked by inserting a tool into the window portion, thereby forming a protrusion in the gauge body that bites into the resin of the handle portion, and the protrusion prevents one end of the gauge body from coming off the handle portion. Fixed It is manufactured in the manner that (for example, see Patent Document 1).

Japanese Patent Laying-Open No. 2005-91233 (Claims, FIGS. 3 to 5)

  However, in the above prior art, since the protrusion formed by caulking the gauge body is bitten into the resin of the handle part, since the damage to the handle part is great, there is a possibility that the handle part may be damaged. There were issues that had to be resolved, such as undeniable.

  In view of the problems such as breakage of the grip portion based on the above-described conventional technology, the present invention forms a window portion communicating with the attachment hole of the metal strip serving as the gauge body on the side surface of the component serving as the grip portion, A tongue piece portion formed on the metal strip so as to be foldable is exposed and bent in the window portion to form a stopper, and the stopper is formed at a portion opposite to the window portion with respect to the mounting hole in the component. It is accommodated in the accommodating recess, the metal strip is inserted into the mounting hole of the component, a tool is inserted into the window portion, the tongue piece portion of the metal strip is bent, and is brought into contact with the inner wall surface of the accommodating recess. By manufacturing an oil level gauge, which is a composite part that is a stopper and the part is secured to the metal strip by the stopper, there is no damage to the component by the stopper that has processed the metal strip. Manufactured In the ability to solve the above problems.

In short, the present invention forms a window portion communicating with the mounting hole on the side surface of the component, and forms a stopper by exposing and folding the tongue piece portion formed on the metal strip so as to be bent. Since the stopper is accommodated in the accommodating recess formed in the part opposite to the window portion with respect to the mounting hole in the component, the stopper that is accommodated in the accommodating recess by simply folding a part of the metal strip. Therefore, there is no damage to the parts due to the stopper, so it is possible to eliminate problems such as deformation and cracking of the parts, for example, the metal strip moves to the drawing direction with respect to the parts However, since the stopper hits the inner wall surface of the housing recess, separation between the component and the metal strip can be completely prevented.
Further, since two slits are formed in the metal strip and the portion between the slits is used as the tongue portion in the metal strip, the tongue portion can be formed with a simple configuration.
In addition, a through hole is formed in the part so as to penetrate at right angles to the mounting hole, and one end side portion of the through hole is used as a window portion, and the other end side portion is used as a housing recess. The part between the slits of the metal strip can be processed from either of the holes.
And the manufacturing method of the composite part according to claim 1, 2, or 3, wherein the metal strip is inserted into the mounting hole of the component, the tool is inserted into the window portion, and the tongue piece portion in the metal strip is The stopper is bent and abutted against the inner wall surface of the housing recess, and the parts are secured to the metal strip by the stopper so that a complicated mold is not required and a simple device is used. Can be integrated.

Since the mounting hole is not penetrated to the part and the position restricting part at the tip of the metal strip is provided at the back of the mounting hole, the tip of the metal strip is positioned by the position restricting part. In this state, the fine movement of the metal strip in the longitudinal direction of the part can be prevented or suppressed to a very small amount, so that the product with excellent integrity of the metal strip and the part can be obtained. Since the pressing member is an elastic body, the pressing member can be elastically deformed, and the tip of the metal strip can be inserted deeper than the contact position with the pressing member. Since the degree of adhesion between the front end surface and the stopper and the inner wall surface of the housing recess is increased by the elastic restoring force of the pressing member, the integrity of the part with the metal strip can be further improved.
The composite part manufacturing method according to claim 5 or 6, wherein one end of the metal strip is inserted into the mounting hole of the part until the tip of the metal strip comes into contact with the position restricting portion, and is inserted into the window portion. A stopper is inserted into the metal strip to bend the tongue piece portion of the metal strip and abuts against the inner wall surface of the housing recess, and the stopper prevents the component from coming off from one end of the metal strip. Since the stopper is kept in contact with the restricting portion, a complicated mold is unnecessary, and it can be integrated so as not to rattle with a simple device.

  In the composite part in which the part is integrated with the metal strip according to the present invention, a window 4 communicating with the mounting hole 3 of the metal strip 2 is formed on the side surface of the component 1 made of synthetic resin. A portion of the metal strip 2 exposed in the window portion 4 is bent to form a stopper 10, and the stopper 10 is formed on a part of the component 1 opposite to the window portion 4 with respect to the mounting hole 3. The component 1 is secured to the metal band plate 2 by being housed in the housing recess 5 and abutting against the inner wall surface 5a on the opening side of the mounting hole 3 in the housing recess 5.

Hereinafter, an embodiment of an oil level gauge as an example of a composite part will be described with reference to the drawings.
1 is an enlarged view of the main part of the front view of the oil level gauge, FIG. 2 is a side view of FIG.
The handle portion 1 is a component made of synthetic resin, and the gauge body 2 is a metal strip having a gauge portion (not shown) at the tip.

The handle portion 1 is composed of a handle portion main body 1a and a fitting insertion portion 1b into a guide pipe (not shown), and a proximal end portion of the gauge main body 2 on the distal end surface of the fitting insertion portion 1b. The mounting hole 3 of 2a is formed, and the window part 4 which opens on the side surface of the insertion part 1b and communicates with the mounting hole 3 is formed. The opposite side of the window part 4 to the mounting hole 3 in the insertion part 1b An accommodating recess 5 for a stopper 8 to be described later is formed in this part.
Further, a through-hole 6 perpendicular to the attachment hole 3 is formed in the insertion portion 1b, and one end side portion from the attachment hole 3 in the through-hole 6 is a window portion 4, and the other end side portion is an accommodation recess 5. .

  In the gauge body 2, as shown in FIG. 5 (A), two slits 7 and 7a are formed in the proximal end portion 2a inward from one side portion, and the proximal end portion is formed therebetween. Is formed with a bendable tongue piece portion 8 connected to the gauge body 2, and the tongue piece portion 8 is exposed in the window portion 4 in the fitting insertion portion 1 b of the handle portion 1 and the tongue piece portion 8. Is bent toward the housing recess 5 from the window 4, and a stopper 10 is formed in the housing recess 5.

  Further, in another embodiment of the tongue piece portion 8 that forms the stopper 10, as shown in FIG. 5B, a substantially U-shaped slit 7 is formed in the gauge body 2 and the inside thereof is formed on the tongue. As shown in FIG. 5 (C), a single slit 7 is formed inward from one side and a slit 7a formed continuously at a right angle from the tip of the slit 7 is formed. In other words, the inner side of the gauge body 2 is bent so that a part of the gauge body 2 can be bent as a tongue piece part, and the tip of the tongue piece part is on the side of the gauge body 2 or the tip of the gauge body 2. The slit should just be formed so that it may be located in the side.

Next, the manufacturing method of the composite component which integrated components in the edge part of the metal strip which concerns on this invention is demonstrated.
As shown in FIGS. 3 and 4, the gauge body 2 that is a metal strip is first set on the jig A (see FIG. 4A), and then the handle portion 1 that is a component is attached to the base end of the gauge body 2. The side part 2a is attached so as to be inserted into the attachment hole 3 of the handle part 1 (see FIGS. 4 (a) and 4 (b)), and then the tool T is inserted into the window part 4 to The tongue piece 8 is bent so as to be accommodated in the accommodating recess 5 to form a stopper 10 (see FIGS. 3B and 4C), and finally the tool T is pulled out from the window 4. (See FIG. 3C), the oil level gauge is a composite part.

When the component 1 is attached to the tip of the metal strip 2, a position restricting portion 12 at the tip of the metal strip 2 is formed in the inner portion of the attachment hole 3, and the position restricting portion 12 is formed as shown in FIG. The pressing member 12a, which is a compression elastic body, is provided in the inner part of the mounting hole 3. The pressing member 12a is formed in a circular arc plate shape curved toward the inlet side of the mounting hole 3.
Specifically, a semicircular hole 13 is formed in the component 1 (the handle main body 1a) with the arc side positioned on the inlet side of the mounting hole 3, and the mounting hole 3 is formed in a convex arc shape at the back. Thus, the pressing member 12a is an arc plate-like portion formed between the semicircular hole 13 and the mounting hole 3 so as to be disposed in the vicinity of the semicircular hole 13.
In addition, in the pressing member 12a in the above embodiment, as shown in FIG. 6, a convex arcuate plate material 12b facing the inlet side of the mounting hole 3 is a compression elastic body, but not limited to this form. For example, although not shown, it is a compression elastic body having a bent plate shape provided in the inner part of the mounting hole 3, a compression elastic body such as a compression spring that is separate from the support member 3a, or It may be a simple protrusion integrally protruding at the back of the mounting hole 3.

6, 7, and 8 (A) to (B) are substantially the same as the composite part manufacturing method shown in FIGS. 1 and 2, but a metal is formed in the mounting hole 3 of the part 1. In the process of inserting the tip of the strip 2, the tip of the metal strip 2 abuts against the pressing member 12 a to deform the pressing member 12 a,
When the tool T is pulled out from the window part 4, the stopper 10 is brought into contact with the inner wall surface of the housing recess 5 by the restoring force of the deformed pressing member 12a, and the part 1 is a composite part that does not rattle against the metal band plate 2. Oil level gauge.

  When the composite part according to the present invention is an oil level gauge, the mounting hole 2 in the handle part 1 (part 1) is formed so as not to reach the handle part main body 1a as shown in FIGS. Alternatively, as shown in FIGS. 6 and 7, it may be formed so as not to reach the handle body 1a. In the latter case, the gauge body 2 (metal strip 2) penetrates the insertion portion 1b. Since it has reached the handle portion main body 1a, the gauge main body 2 (metal strip 2) serves as a reinforcing material for the handle portion 1 (component 1).

  Although the mounting hole 3 is not penetrated in the drawing, although not shown, the part 3 may be attached to the intermediate portion of the metal strip 2 in a penetrating state. 3 is not provided with a position restricting portion 12 at the tip of the metal strip 2.

It is a principal part enlarged view of the front view of the oil level gauge which is one Example of this invention. It is a side view of FIG. It is sectional drawing which shows the manufacturing process of the oil level gauge of FIG. It is a side view which shows the manufacturing process of the oil level gauge of FIG. It is the elements on larger scale of the gauge main body in the oil level gauge of FIG. It is the elements on larger scale of the gauge main body which shows the other Example of FIG. 5 (A). It is the elements on larger scale of the gauge main body which shows the other Example of FIG. 5 (A). It is a principal part enlarged view of the front view of the oil level gauge which provided the position control part. FIG. 7 is a side view of FIG. 6. It is a longitudinal cross-sectional view of the oil level gauge of FIG. It is a longitudinal cross-sectional view of the oil level gauge using the gauge main body of FIG.5 (B) or FIG.5 (C).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Parts 2 Metal strip 3 Mounting hole 4 Window part 5 Receiving recessed part 6 Through-hole 7, 7a Slit 8 Tongue piece part
10 Stopper
12 Position control section
12a Pressing member T Tool

Claims (7)

A composite component comprising a metal strip and a component having a mounting hole for the metal strip,
Opening a window portion that communicates with the mounting hole on the side surface of the component, and forming a stopper by exposing and folding the tongue piece portion formed on the metal strip so as to be bent, A composite part characterized in that the stopper is housed in a housing recess formed in a part opposite to the window part with respect to the mounting hole in the part.   2. The composite part according to claim 1, wherein two slits are formed in the metal strip and a portion between the slits is used as a tongue piece part.   A through hole is formed in the component at a right angle to the mounting hole, one end side portion of the through hole is a window portion, and the other end portion is a receiving recess. Composite parts as described. A method for producing a composite part according to claim 1, 2 or 3,
A metal strip is inserted into the mounting hole of the component, a tool is inserted into the window portion, a tongue piece portion of the metal strip is bent, and a stopper is brought into contact with the inner wall surface of the housing recess, and the stopper is used to A method of manufacturing a composite part, characterized in that the part is secured to a band plate.   4. The composite part according to claim 1, wherein the mounting hole is not penetrated through the part, and a position restricting portion at the tip of the metal band plate is provided at the back of the mounting hole.   6. The composite part according to claim 5, wherein the position restricting portion is a pressing member that is a compression elastic body. A method for producing a composite part according to claim 5 or 6,
Insert the metal strip into the mounting hole of the component until the tip of the metal strip comes into contact with the position restricting portion, insert a tool into the window portion, bend the tongue piece portion of the metal strip, and store the recess A composite part characterized in that the stopper prevents the part from coming off from one end of the metal strip by the stopper and maintains the contact state of the stopper by the position restricting part. Manufacturing method.

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